Following the important precautions below will help ensure you many years of trouble free use from your CS1x. LOCATION · In order to avoid causing serious damage to the CS1x, do not expose it to direct sunlight, high temperatures, excessive humidity, excessive dust or strong vibration. · Always place the CS1x on a solid surface such as a keyboard stand or a sturdy table or desk. ELECTRICAL INTERFERENCE · Avoid using the CS1x near televisions, radios or other devices which generate electromagnetic fields, since this may cause the CS1x to malfunction, and possibly generate interference noise in the other devices. diluted, mild detergent. Then wipe the instrument thoroughly with a dry cloth. · Avoid placing vinyl objects on top of the instrument, since vinyl can stick to and discolor the surface. DATA BACKUP BACK-UP BATTERY · The CS1x contains a special long-life battery that retains the contents of its User memory when the power is turned off. The back-up battery should last for several years. When it needs to be replaced, the message "Battery Low" will appear in the display when the power is turned on. When this happens, have the backup battery replaced by qualified Yamaha service personnel. Do not attempt to replace the backup battery yourself. · Yamaha recommends that you regularly save your music data using an external MIDI data storage device such as the Yamaha MDF2 MIDI Data Filer. Yamaha cannot be held responsible for the accidental loss of CS1x data. POWER SUPPLY · Turn the power switch off when the CS1x is not in use. · Use only the supplied PA-3B or an equivalent AC power adaptor. Use of an incompatible adaptor may result in irreparable damage to the CS1x, and could even pose a serious shock hazard. · The power adaptor should be unplugged from the AC outlet if the CS1x is not to be used for an extended period of time. · Unplug the CS1x during electrical storms...